drupalladder 7.x-1.0-alpha15

Changes since 7.x-1.0-alpha14:

• Removed lessons_curriculum module that doesn't exist anymore (Issue #1822922)
• Added Field Collection module for use in new ladder content type (issue #1822922)
• Use latest RC of Entity API to prevent fatal error in Field Collection (noted in issue #1513406)
• #1494972: Renamed Curriculums to Ladders
• Add a temporary patch to work around a requirements issue in Node access user reference. See http://drupal.org/node/1671410#comment-6439790
• #1775648 by BrockBoland: rebuild script now clones lessons and ladder sub-projects
• Fixed some handling around directory relations. Related to #1775704
• Attempting a different way of interacting with other projects. Related to #1775704
• #1775704 by emmajane: Fixed the scripts to work from a subdirectory of the main project.
• Fixed old Learn Drupal label (and removed some whitespace)
• #1671258 by BrockBoland: Created a basic setup script for developers, and moved it and the rebuild script into a scripts directory
• Updated nodeaccess_userreference to use latest version
• #1671298 by BrockBoland: fixed block deltas